From: Brett GrantTo: Bill BusathSubject: FW: DFR- Oct 8, 2012 PG&E hitDate: Tuesday, October 09, 2012 13:08:06Attachments: Curtis Park Water Main DFR 2012_10_08.docx

What a day!

From: Annie N. Martin Sent: Tuesday, October 09, 2012 10:23 AMTo: Paul Barnes; Chris Powell; Brett Grant; Mike ColasantiSubject: DFR- Oct 8, 2012 PG&E hit I thought you might want to see this so you can get a better picture of what went down yesterday. J Annie MartinP S O M A S | Balancing the Natural and Built EnvironmentConstruction InspectorProgram/Construction Management1075 Creekside Ridge Drive #200Roseville, CA 95678 | 916.788.4856Cell 916-826-3354www.psomas.com

mailto:bgrant@cityofsacramento.orgmailto:bbusath@cityofsacramento.orghttp://www.psomas.com/

1075 Creekside Ridge Drive, Suite 200Roseville, CA 95678(916) 788-8122INSPECTORS FIELD REPORT

Date: 10/8/2012

Project Name: Curtis Park Water Main Project Owner: City of Sacramento

Contractor: T&S ExcavationSubcontractor(s) NONE

Project No: Z14010051Contract No: 6SAC034000

Weather Conditions: Warm and clearTemperature Range: 52-84 F

CONTRACTOR ACTIVITY (Please time stamp observations by indicating time at beginning of each new item):

7:40 a.m. arrived on-site. Spoke with crew about installing fire hydrants on Donner. The Crew was on Donner last week and only installed 2 hydrants. 2 more hydrants need to be installed still.

Approx. 9:30 a.m. While digging with a shovel; to build the receiving pit, contractors staff hit the water service line to the home located at 3054 24th Street. Contractor did not phone any city staff to notify of the water hit.

10:00 a.m. Return to site. Reviewed traffic controls on 24th. They need some correction; as there is no Construction Ahead or Detour Ahead signs up. I asked Billy to address this.

When I approached the work area I noticed water flowing heavy in the gutter line. I observed 3 holes dug, all were full of water. Billy was in hole dug above the existing main trying to turn the corp off at the main. He was unable to get water shut down.

10:20 a.m. water was being pumped out of the excavation with no filter bags. Boring rig began to bore at home adjacent to the leak; 3056 24th Street.

11:00 a.m. water was shut off and the crew was able to turn the line off at the main. Boring machine then relocated to 3054 24th Street and began to bore again. I watched to verify the bore crossed over the existing water main.

11:15 a.m. As the machine pushed through the soil a load gush of gas blasted up. The bore machine had hit the gas main. I phoned mike Colasanti, Chris Powell and Brett Grant to report the incident.

11:40 a.m. PG&E supervisor; Erik Kurtz (916-386-5373) arrived on-site with a full crew to assess the damage. We started evacuations of the following homes: 3056, 3054 and 3048 24th Street. These homes were within a blast distance.

12:15 p.m. After speaking to Erik Kurtz about evacuations, we asked them to phone 911 as standby just in case a critical incident occurred.

12:25 p.m. Fire standby arrived. T&S was asked by PG&E to provide assistance in exposing their main. They made preparations to crimp the line while T&S dug. This crimp was placed on 24th street, between Curtis and Donner. More PG&E crews arrived to assist and relieved the T&S backhoe.

1:40 p.m. PG&E successfully crimped the line and stopped the flow of gas. Gas blew for 2 hours 45 mins which left a large void in the roadway. Many cars and T&S equipment was covered in sand and debris. No residents mentioned any damage to their homes or cars at this point.

1:50 p.m. PG&E requested that T&S assist in cleaning up the area in order for them to expose the damaged gas line. Once this was completed PG&E began to excavate the area to make a repair.

2:40 p.m. While PG&E was digging they hit the water service; 3056 24th, which was previously repaired by T&S this morning. This time the water service was pulled directly from the main. I phoned Mike Shilliday and 311 to report the issue.

3:20 p.m. City utility crew arrived and began to shut off water valves.

3:40 p.m. Water finally shut off. Crew was able to turn off corp stop at the main after dewatering. They then turned on the other valves; restoring all other homes on 24th Street.

3:55 p.m. While digging to expose the line PG&E hit the sewer service for 3056 24th street. They phoned a plumber to repair. His ETA is unknown.

4:30 p.m. PG&E working on cutting their line to make the repair. They stated it would be a long while before they are able to blow the gas line out and said the water service tech. could get in to do his work at this time. The City water tech. stated he could not make the repair and we needed to phone 311 to have another team come out.

5:10 p.m. PG&E informed me they have to remove the mud and water from the inside of the pipe prior to restoring gas service. They have to cut another section out to perform this work.

5:30 p.m. PG&E still not making any repairs. All supervisors have left the job site. 1 journeyman and 2 apprentices remain.

6:00 p.m. PG&E still not performing any corrections. No plumber on-site still to repair the sewer service. I asked the Journeyman for PG&E what the status was. He (Casey) stated it may be around 10pm.

6:10 p.m. Billy with T&S was not comfortable with leaving the resident without City services any longer and chose to make the repairs themselves. T&S then repaired the sewer and water. We then flushed the line and informed the homeowner they could use their utilities again.

6:40 p.m. PG&E still not performing any corrective work. No supervisors on site still. We informed the 3 man crew we had completed the repairs and backfilled our services. T&S provided 2 trench plates for PG&E to use as cover; asking them to not backfill the repaired services so we can ensure they are backfilled with approved material.

7:00 p.m. T&S and I left the site. PG&E still on-site. I asked Billy to come in early and clan the streets and gutter.

*NO PRODUCTION TODAY- NO PAY ITEMS COMPLETED

SUBCONTRACTOR ACTIVITY (Please time stamp observations by indicating time at beginning of each new item):

NONE

ENVIRONMENTAL (discuss SWPPP and other environmental inspections):

Water from broken water service flowed into combined storm system during emergency repairs. Silt drain fabric over all DI's

SAFETY (discuss attendance of tailgate meetings as well as safety concerns):

Proper traffic and trench safety used. PPE worn by all and public has a safe right of way to walk etc.

VISITOR LOG

Name

Company

Time-in

Time-out

Location

Purpose

MATERIAL QUANTITIES

Item No.

Description

Quantity

Unit

Installed or Delivered

1

Preconstruction Photographs

2

4- Inch diameter water main, to furnish and install

3

6- Inch diameter water main, to furnish and install

4

8- Inch diameter water main, to furnish and install

5

12- Inch diameter water main, to furnish and install

6

4- Inch diameter gate valve, to furnish and install

7

6- Inch diameter gate valve, to furnish and install

8

8- Inch diameter gate valve, to furnish and install

9

12- Inch diameter gate valve, to furnish and install

10

8-Inch Standard Fire Hydrant, to furnish and install

11

Existing Fire Hydrant, to remove

12

1- Inch Water Service with meter box to furnish and install (main to meter box)

13

Hybrid water service w/Meter box to furnish and install (main to front/SIDE hose bib)

14

Hybrid water service w/Meter box to furnish and install (main to front/REAR hose bib)

15

Additional 1 -Inch Copper water pipe to furnish and install

16

Connection to existing water distribution system

17

Water service abandon

18

1 - Inch schedule 40 PVC, to furnish and install

19

Mains to cap

20

Existing valves, Tees, Saddles and Water Mains to remove or abandon

21

Water quality, to provide

22

Concrete, to remove and replace

23

Asphalt concrete, to remove and replace

24

Unsuitable material, to remove and replace

25

Potholes

26

Reconnect existing water sampler

27

Reconnect existing water meter

28

Install decomposed Granite

LABOR AND EQUIPMENT ON SITE

CRAFT

HOURS

ITEM No/QUANTITIES

WORKER

EQUIPMENT

REG

OT

4

DOWN OR IDLE

William Hinds

super

op

8

4

James Rutherford

op

8

2

Brodey Thorn

lab

6

Kevin Pomeroy

Case 210

op

4

Choy Saechao

lab

4

Rick Tokos

580 Boring machine and case 621D loader

op

8

4

Alfredo PAZ-Garcia

lab

4

Project Manager/RE Name: Inspector Name: Annie M. Martin

PHOTOGRAPHS (Click on Icons below to insert photos, and then expand to desired size)

Bill Hines Forman attempts to shut off water leak at main. House 3054 24th Street

Water discharged into gutter during emergency repairs to the water service at 3054 24th Street.

DI protected by filter bag. Bag had to be pulled to prevent flooding

24th Ave. looking North on 24th Street

Water service damaged by T&S shovel repaired.

Gas Mai spewing gas on 24th Street @ 11:28 a.m.

Gas main crimped to shut down flow

Damage to street caused by the gas main damaged blowing for over 2.5 hours.

Gutter and street started to flood after PG&E hit the water service just repaired by T&S

Sewer service hit by PG&E; while they were digging to expose and repair their gas main.

Damaged gas main shows the bore machine head penetrated the line.

View of mud inside the gas main. This mud is a result of PG&E hitting the water supply and flooding the trench.

Water service and sewer service repaired by T&S

Water service and sewer service repaired by T&S. Future water service pulled through and tapped to the existing water service for future connection.

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